Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000001334

Record: MDI000000001334

General

Commodities

Primary Commodities: Copper

Secondary Commodities: Cobalt, Nickel

Location

Township or Area: Joyce River Area

Latitude: 51° 3' 41.95"    Longitude: -93° 0' 50.35"

UTM Zone: 15    Easting: 499020   Northing: 5656681    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 52N03SE

Point Location Description: Point UTM taken in probable Trench#2

Location Method: Field Visit with GPS

Access Description: From Ear Falls, about 3.5 km east on the Gold Pines Road to the junction of the South Bay Road then about 45 km on the South Bay Road to the junction of the Joyce Lake Road, then about 7.8 km on the Joyce Lake Road to the Otter Road; then 4 km to a trail on the north side of the road. Claim 3009732 (in good standing at time of writing-2011)

Exploration History

2006-2007; Ray Frank conducted trenching and blasting of 4 pits; sampling of Trench #1 and #2. 2009: Ray Frank conducted prospecting, mucking out of trenches by backhoe, sampling. 2010: Ray Frank conducted blasting, sampling of Trench #2 and #3. 2012: Advanced Exploration Inc. conducted a helicopter-borne EM and magnetic survey, geological mapping, soil sampling, and trench sampling.

Assessment Work on File

Geology

Province: Superior

Subprovince: Uchi

Terrane: North Caribou

Domain: Uchi

Belt: Birch-Uchi

Geological Age: Archean  

Metamorphism Grade: Greenschist

Geology Comments

Dec 15, 2011 (A Lichtblau) - The Joyce River Gabbro lies within the southern margin of the Trout Lake Batholith. Poor exposures in the area of the trenches show the gabbro in contact with Magnetite-BIF hosted in gneiss.

Lithology

Mineralization

Mineralization Comments

Aug 28, 2017 (A Lichtblau) - Sampling of Trench #1 and #2: Trench #1 (499101E / 5656572N): Sample #967 assayed 3035 ppm Cu. Trench #2 (499020E /5656681N): Sample #974 assayed 3549 ppm Cu, 458 ppm Ni, 43 ppb Au, 65 ppb Pt, 35 ppb Pd. Other assays are unreferenced as to which trench; Sample #28201 assayed 105,756 ppm Cu (10.58% Cu) and 66 ppb Au. Trench #3 (“Work Area 3-A”): Sample #28292 assayed 1167 ppm Co, 1207 ppm Cu, 800 ppm Ni; Sample #28303 assayed 2882 ppm Co, 8338 ppm Cu, 240 ppm Ni; Sample #28314 assayed 56 ppm Co, 109,094 ppm (10.9%) Cu, 16 ppm Ni.

Aug 28, 2017 (Therese Pettigrew) - The highest values were returned from the trenches which were intersected by the grid and are located at 0499084E/5656678N and 0499012E/5656677N, respectively. The mineralization at trenches 2 and 3 is hosted in a pyroxenite / hornblendite intrusion which is non-laterally extensive and has irregular contacts. The unit is not more than 5 meters wide at surface and appears to be hosted in a diorite that shows strong segregation of felsic and mafic phases which may represent migmitization of this host. Occasional sulphide-bearing quartz veining is present at this site. Significant sulphide mineralization including pyrite, pyrrhotite, and chalcopyrite was observed. Samples collecting during 2012 returned values of 1.11% Cu, 1.45% Cu, 7.06% Cu, and 7.66% Cu. Ni values were up to 200 ppm (AFRI 20000007974).

Assay Samples

Mineral Record Details

Site Visit Information

Date: Dec 15, 2011

Geologist: A Lichtblau

Notes: Visited September 6, 2011 by A. Lichtblau and A. Cooke, accompanied by Ray Frank of Ear Falls, ON. Samples 2011AL-017 to 022 were collected (GeoLab Job#11-0272)

References

Map - Precambrian Geology, Little Trout Lake Area

Publication Number: P3280 Scale: 1:50,000    Date: 1994

Author: Stone D., Crawford J.

Publisher Name: Ontario Geological Survey

Location:

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For detailed information regarding this mineral record please contact the Red Lake Resident Geologist District Office